Not working with --enable-source-maps

[skrylnikov]

run script:
node -r ts-node/register --enable-source-maps index.ts

exception:

path/node_modules/threads/dist/master/implementation.node.js:51
    const parentCallSite = callsites_1.default().find((callsite) => {
                                                 ^
TypeError: callsites_1.default(...).find is not a function
    at rebaseScriptPath (path/node_modules/threads/dist/master/implementation.node.js:51:50)
    at resolveScriptPath (path/node_modules/threads/dist/master/implementation.node.js:63:27)
    at new Worker (path/node_modules/threads/dist/master/implementation.node.js:74:40)
    at path/src/csv/index.ts:4:51
        -> path/src/csv/index.ts:3:31
    at path/node_modules/threads/dist/master/pool.js:85:15
    at Array.map (<anonymous>)
    at spawnWorkers (path/node_modules/threads/dist/master/pool.js:84:31)
    at Object.PoolConstructor [as Pool] (path/node_modules/threads/dist/master/pool.js:99:21)
    at Object.<anonymous> (path/src/csv/index.ts:4:24)
        -> path/src/csv/index.ts:3:14
    at Module._compile (internal/modules/cjs/loader.js:956:30)

main.ts:

import { spawn, Worker, Pool } from 'threads';

const pool = Pool(() => spawn(new Worker('./worker.ts')), 4);

worker.ts:

import { expose } from 'threads/worker';

const start = ()=>{
  console.log('start worker');
  
};

export type Start = typeof start;

expose(start);
 

[andywer]

Hey @skrylnikov! Thanks for reporting, that really does look weird.

Can you confirm that it works without --enable-source-maps and can you console.log(callsites_1) right before the error is thrown, please?

[skrylnikov]

Yes, it works without --enable-source-maps.
I think I find problem. It occurs in callsites. Callsites use Error.prepareStackTrace, But Error.prepareStackTrace not work with --enable-source-maps.
nodejs/node#29994

[andywer]

Good catch. Let's open an issue at the callsites repo then. Can you tell me what the callsites call returns when the source maps are on? Would be an important detail when we open the issue at their repo.

[andywer]

Ping. Please see above 👆😉

[andywer]

Closing, due to inactivity.